1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
svetoff [14.1K]
3 years ago
5

What is the purpose of a primary key?

Computers and Technology
1 answer:
tia_tia [17]3 years ago
4 0

Answer:

 Primary key:

A primary key is the collection of field value which persist unique value in the table. The primary key value can be use to represent the entire record throughout the table. In the database, each table only contain one primary key.

 The purpose of the primary key is used to implemented the relationship within the two tables in the database. More explicitly the primary key is define as, primary key is "target" that the foreign key can easily referenced. It basically consist multiple attributes in the table.

You might be interested in
_is necessary for the health growth of bones and teeth fill ups​
alekssr [168]

Answer:

Calcium

Explanation:

Calcium is a necessity and makes your bones stronger. It typically comes in milk.

7 0
4 years ago
Read 2 more answers
While there are a lot of programming languages out there, one of the most widely used when it comes to web applications and web
Crazy boy [7]

Explanation:

The main differences between Javascript and other programming languages are as following :-

  1. Javascript is a scripting language so it doesn't need to be compiled to get executed while other programming languages like C++,Java etc need to be compiled.
  2. Javascript is typed dynamically while other languages are static typed.
  3. Browsers can execute Javascript code on the other hand they can't execute Java,C++ etc.
8 0
3 years ago
Does the internet bring more harm than good? (This is an actual question from my class)
Amiraneli [1.4K]
This is a opinion question rather than a factual question. However, many researchers have found that though the internet does provide many harmful things (it has brought a whole new level to prostitution as well as the drug cartel and other illegal substance/objects that are sold), the good will forever outweigh the bad. The internet has caused us to be able to disperse and collect information from all over the world and has helped us create many scientific as well as technological advancements. Though there will terminally be things people will use the internet for that is "bad", the good outweighs the bad on what is has and will do for us.
5 0
3 years ago
Each type of text has a purpose for the reader if you were looking to research penguins what type of text would u utilize
dlinn [17]
1. ughhhh not entirely sure but B, 2. again not entirely sure should be B as well and finally 3.is D remember these are not always the answer just most likely what one person thinks
3 0
4 years ago
A person you respect who offers you advice and assistance is known as a(n) _____.
Archy [21]
This would be a mentor-D. They role is to mentor or guide you with advice or assistance. A role model is a similar answer in that they respect you, but they might not offer advice or assistance which makes it incorrect.
7 0
3 years ago
Other questions:
  • Someone help me I don’t know what to do /COMPUTER SCIENCE
    5·1 answer
  • A device that produces a permanent human-readable text of graphic document.
    15·1 answer
  • Define a function is_prime that receives an integer argument and returns true if the argument is a prime number and otherwise re
    9·1 answer
  • ​Suppose your computer network was compromised in a large scale virus attack last Thursday. Most of the data files got corrupted
    8·1 answer
  • 30 POINTS!!
    15·1 answer
  • You are the administrator for a small network with several servers. There is only one printer, which is centrally located. Altho
    10·1 answer
  • Comment if u wanna text me on behance
    6·1 answer
  • Which of the following is a true statement about parameters in data management? Check all that apply.
    11·1 answer
  • Winston typically spends about $200 per year playing the lottery. If he took that same amount of money, for 30 years, and invest
    12·1 answer
  • can i get an access code for free online? if yes, what website is it so i can get a free access code?​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!